Based on this graph, if you can measure the mass of a galaxy's central bulge, then you will also know the approximate
A) mass of the galaxy's supermassive black hole.
B) mass of the galaxy as a whole.
C) diameter of the galaxy.
D) diameter of the central bulge.
A) mass of the galaxy's supermassive black hole.
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A rectangular stack of lead bricks measures 2 m by 3 m by 4 m. The mass density of lead is 11,340 kilograms per cubic meter. What is the total mass of the stack of lead?
What approach for estimating the distance to a galaxy requires the measurement of a galaxy's rotation speed?
A. Type Ia supernova as standard candles B. the Tully-Fisher method C. Hubble's law D. Cepheid variables as standard candles
Which of the following is usually burned up in Earth's atmosphere?
a. Asteroid b. Meteoroid c. Meteor d. Meteorite
The product of gas pressure and volume for a given mass of gas is constant
A) if the temperature doesn't change. B) whether or not the temperature changes. C) never. D) none of the above